Contract.ConditionalPostcondition, Contract.Kind, Contract.Postcondition, Contract.Preconditionannotation, contractAnnotation, expressionString, kind| Constructor and Description | 
|---|
| Precondition(String expressionString,
            AnnotationMirror annotation,
            AnnotationMirror contractAnnotation)Create a precondition contract. | 
public Precondition(String expressionString, AnnotationMirror annotation, AnnotationMirror contractAnnotation)
expressionString - the Java expression that should have a type qualifierannotation - the type qualifier that expressionString should havecontractAnnotation - the precondition annotation that the programmer wrote; used for
     diagnostic messages